Oracle Team

Oracle Public Cloud patch conflict

By Franck Pachot . This morning I wanted to test a patch (18633374) in the Oracle Cloud Service. The DBaaS was created as an 'Enterprise Edition Extreme Performance' which comes with all options, including multitenant option. I applied my patch.

Nulls in composite keys

By Franck Pachot . Comparison of NULL can be misleading and it's even worse for unique constraint validation. Having partial nulls in a composite key can be tricky because the SQL ANSI specification is not very easy to understand, and(…)

SharePlex Compare and Repair commands

By Mouhamadou Diaw Reading Franck Pachot blog about comparing source and target in a Dbvisit replication (http://dbi-services.com/blog/compare-source-and-target-in-a-dbvisit-replication/), I decide to write a small article about how we can do same thing with SharePlex. Indeed SharePlex provides built-in(…)

Oracle Multitenant feature name

By Franck Pachot . We all know what is the multitenant option: a container database (CDB) with multiple user pluggable databases (PDB). This requires Enterprise Edition plus option. But you can use the same architecture without the option and even(…)

Compare source and target in a Dbvisit replication

By Franck Pachot . You've setup a logical replication, and you trust it. But before the target goes into production, it will be safer to compare source and target. At least count the number of rows. But tables are continuously(…)

Script to suggest FK indexes

By Franck Pachot . In Oracle, when the referenced key is deleted (by delete on parent table, or update on the referenced columns) the child tables(s) are locked to prevent any concurrent insert that may reference the old key. This(…)

GoldenGate 12.2 – Installation of the monitoring agent

As described in my last post, GoldenGate Studio requires the monitor agent on each GoldenGate instance. The goal of this agent is to allow GoldenGate Studio to interact with GoldenGate, for example, to(…)

Statspack Idle Events

By Franck Pachot . When you don't have Enterprise Edition + Diagnostic Pack, you cannot use AWR but you can, and should, install Statspack. Statspack is still there, but unfortunately do not evolve a lot. The most important section, the(…)

Manage DDL inside SharePlex

By Mouhamadou Diaw In a precedent blog (http://dbi-services.com/blog/discovering-shareplex-for-oracle/) about SharePlex, we presented how to setup a replication between 2 environments. In this article we will try to see how SharePlex deals with replicating DDL statements. Before starting we(…)

Question is: upgrade now to 12.1.0.2 or wait for 12.2 ?

By Franck Pachot . Let's look at Release Schedule of Current Database Releases (Doc ID 742060.1) 12.2.0.1 is planned for 2HCY2016 on platforms Linux x86-64, Oracle Solaris SPARC (64-bit), Oracle Solaris x86-64 (64-bit). 2HCY2016 starts next(…)